# M16-GAP-00199 Status

status: done
task: anim.paste_driver_button operator LOCAL_EXACT slice
updated: 2026-08-22 America/New_York

scope:

- The minimal fixture contains one mesh object with a driven `source_target` custom property and an undriven `paste_target` custom property. Desktop UI evidence copies the source driver and pastes it into the target through `ANIM_OT_paste_driver_button`.
- The saved fixture exposes both scripted drivers with the same expression in WASM/Main; no reader, protocol, or browser change was required.

evidence:

- Desktop evidence records the source/target driver state before and after the UI operation, `poll=true`, `FINISHED`, `DRIVER_PASTED`, and exact save/reopen. The checker also preserves this evidence on repeated runs.
- WASM/Main reads both drivers from the same fixture, preserves them across save/reopen, and rejects malformed Blend input without Main mutation.
- Fixture generation, foreground desktop checker, npm comparator, direct comparator, and task-context checks passed. Chromium-only policy was preserved; no Firefox/WebKit run was made.

nextTask: `M16-GAP-00200`